package opt

type Set []Option

func NewSet() Set {
	return Set{}
}

func (s Set) MaxWidth() int {
	max := 0
	for _, f := range s {
		if w := len(Names(f)); w > max {
			max = w
		}
	}
	return max
}

func (s *Set) Add(f Option) {
	*s = append(*s, f)
}

func (s Set) Get(name string) (Option, bool) {
	for _, o := range s {
		if o.Name() == name {
			return o, true
		}

		if o.ShortName() == name {
			return o, true
		}
	}
	return nil, false
}

func (s Set) Names() []string {
	names := []string{}
	for _, o := range s {
		names = append(names, "--"+o.Name())
		names = append(names, "-"+o.ShortName())
	}
	return names

}

func (s Set) GetByLongName(longName string) (Option, bool) {
	for _, o := range s {
		if o.Name() == longName {
			return o, true
		}
	}
	return nil, false
}

func (s Set) GetByShortName(shortName string) (Option, bool) {
	for _, o := range s {
		if o.ShortName() == shortName {
			return o, true
		}
	}
	return nil, false
}

func (s Set) GetBool(name string) (*BoolOption, bool) {
	o, ok := s.Get(name)
	if !ok {
		return nil, false
	}

	b, ok := o.(*BoolOption)
	if !ok {
		return nil, false
	}

	return b, true
}

func (s Set) GetString(name string) (*StringOption, bool) {
	o, ok := s.Get(name)
	if !ok {
		return nil, false
	}

	b, ok := o.(*StringOption)
	if !ok {
		return nil, false
	}

	return b, true
}

func (s Set) GetInt(name string) (*IntOption, bool) {
	o, ok := s.Get(name)
	if !ok {
		return nil, false
	}

	b, ok := o.(*IntOption)
	if !ok {
		return nil, false
	}

	return b, true
}

func (s Set) GetFloat(name string) (*FloatOption, bool) {
	o, ok := s.Get(name)
	if !ok {
		return nil, false
	}

	b, ok := o.(*FloatOption)
	if !ok {
		return nil, false
	}

	return b, true
}